20112101220012 has 24 divisors (see below), whose sum is σ = 46928614182912. Its totient is φ = 6703979739600.

The previous prime is 20112101220011. The next prime is 20112101220053. The reversal of 20112101220012 is 21002210121102.

It is a junction number, because it is equal to n+sod(n) for n = 20112101219973 and 20112101220000.

It is not an unprimeable number, because it can be changed into a prime (20112101220011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5183664 + ... + 8191127.

It is an arithmetic number, because the mean of its divisors is an integer number (1955358924288).

Almost surely, 2^{20112101220012} is an apocalyptic number.

It is an amenable number.

20112101220012 is an abundant number, since it is smaller than the sum of its proper divisors (26816512962900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20112101220012 is a wasteful number, since it uses less digits than its factorization.

20112101220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13500109 (or 13500107 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20112101220012 its reverse (21002210121102), we get a palindrome (41114311341114).

The spelling of 20112101220012 in words is "twenty trillion, one hundred twelve billion, one hundred one million, two hundred twenty thousand, twelve".